Add dox for new API

doc/dox_comments/header_files/ssl.h

@@ -7599,18 +7599,49 @@ int wolfSSL_writev(WOLFSSL* ssl, const struct iovec* iov,
     WOLFSSL_METHOD method = wolfTLSv1_2_client_method();
     WOLFSSL_CTX* ctx = WOLFSSL_CTX_new(method);
     …
-    if(!wolfSSL_CTX_UnloadCAs(ctx)){
+    if(wolfSSL_CTX_UnloadCAs(ctx) != SSL_SUCCESS){
     	// The function did not unload CAs
     }
     \endcode
 
     \sa wolfSSL_CertManagerUnloadCAs
     \sa LockMutex
-    \sa FreeSignerTable
     \sa UnlockMutex
 */
 int wolfSSL_CTX_UnloadCAs(WOLFSSL_CTX*);
 
+
+/*!
+    \ingroup Setup
+
+    \brief This function unloads intermediate certificates added to the CA
+    signer list and frees them.
+
+    \return SSL_SUCCESS returned on successful execution of the function.
+    \return BAD_FUNC_ARG returned if the WOLFSSL_CTX struct is NULL or there
+    are otherwise unpermitted argument values passed in a subroutine.
+    \return BAD_STATE_E returned if the WOLFSSL_CTX has a reference count > 1.
+    \return BAD_MUTEX_E returned if there was a mutex error. The LockMutex()
+    did not return 0.
+
+    \param ctx a pointer to a WOLFSSL_CTX structure, created using
+    wolfSSL_CTX_new().
+
+    _Example_
+    \code
+    WOLFSSL_METHOD method = wolfTLSv1_2_client_method();
+    WOLFSSL_CTX* ctx = WOLFSSL_CTX_new(method);
+    …
+    if(wolfSSL_CTX_UnloadIntermediateCerts(ctx) != NULL){
+        // The function did not unload CAs
+    }
+    \endcode
+
+    \sa wolfSSL_CTX_UnloadCAs
+    \sa wolfSSL_CertManagerUnloadIntermediateCerts
+*/
+int wolfSSL_CTX_UnloadIntermediateCerts(WOLFSSL_CTX* ctx);
+
 /*!
     \ingroup Setup
 
@@ -9551,18 +9582,45 @@ int wolfSSL_CertManagerLoadCABuffer(WOLFSSL_CERT_MANAGER* cm,
     #include <wolfssl/ssl.h>
 
     WOLFSSL_CTX* ctx = wolfSSL_CTX_new(protocol method);
-    WOLFSSL_CERT_MANAGER* cm = wolfSSL_CertManagerNew();
+    WOLFSSL_CERT_MANAGER* cm = wolfSSL_CTX_GetCertManager(ctx);
     ...
-    if(wolfSSL_CertManagerUnloadCAs(ctx->cm) != SSL_SUCCESS){
-    	Failure case.
+    if(wolfSSL_CertManagerUnloadCAs(cm) != SSL_SUCCESS){
+        Failure case.
     }
     \endcode
 
-    \sa FreeSignerTable
     \sa UnlockMutex
 */
 int wolfSSL_CertManagerUnloadCAs(WOLFSSL_CERT_MANAGER* cm);
 
+/*!
+    \ingroup CertManager
+    \brief This function unloads intermediate certificates add to the CA
+    signer list.
+
+    \return SSL_SUCCESS returned on successful execution of the function.
+    \return BAD_FUNC_ARG returned if the WOLFSSL_CERT_MANAGER is NULL.
+    \return BAD_MUTEX_E returned if there was a mutex error.
+
+    \param cm a pointer to a WOLFSSL_CERT_MANAGER structure,
+    created using wolfSSL_CertManagerNew().
+
+    _Example_
+    \code
+    #include <wolfssl/ssl.h>
+
+    WOLFSSL_CTX* ctx = wolfSSL_CTX_new(protocol method);
+    WOLFSSL_CERT_MANAGER* cm = wolfSSL_CTX_GetCertManager(ctx);
+    ...
+    if(wolfSSL_CertManagerUnloadIntermediateCerts(cm) != SSL_SUCCESS){
+    	Failure case.
+    }
+    \endcode
+
+    \sa UnlockMutex
+*/
+int wolfSSL_CertManagerUnloadIntermediateCerts(WOLFSSL_CERT_MANAGER* cm);
+
 /*!
     \ingroup CertManager
     \brief The function will free the Trusted Peer linked list and unlocks